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<td >Qt 5.9</td><td ><a href="qtwidgets-index.html">Qt Widgets</a></td><td ><a href="qtwidgets-statemachine-eventtransitions-example.html">Event Transitions Example</a></td><td >main.cpp Example File</td></tr></table><table class="buildversion"><tr>
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<h1 class="title">main.cpp Example File</h1>
<span class="subtitle">statemachine/eventtransitions/main.cpp</span>
<!-- $$$statemachine/eventtransitions/main.cpp-description -->
<div class="descr"> <a name="details"></a>
<pre class="cpp">
<span class="comment">/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtCore module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:BSD$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** BSD License Usage
** Alternatively, you may use this file under the terms of the BSD license
** as follows:
**
** "Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions are
** met:
** * Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** * Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in
** the documentation and/or other materials provided with the
** distribution.
** * Neither the name of The Qt Company Ltd nor the names of its
** contributors may be used to endorse or promote products derived
** from this software without specific prior written permission.
**
**
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
**
** $QT_END_LICENSE$
**
****************************************************************************/</span>
<span class="preprocessor">#include <QtWidgets></span>
<span class="keyword">class</span> Window : <span class="keyword">public</span> <span class="type"><a href="qwidget.html">QWidget</a></span>
{
<span class="keyword">public</span>:
Window(<span class="type"><a href="qwidget.html">QWidget</a></span> <span class="operator">*</span>parent <span class="operator">=</span> <span class="number">0</span>)
: <span class="type"><a href="qwidget.html">QWidget</a></span>(parent)
{
<span class="type"><a href="qpushbutton.html">QPushButton</a></span> <span class="operator">*</span>button <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qpushbutton.html">QPushButton</a></span>(<span class="keyword">this</span>);
button<span class="operator">-</span><span class="operator">></span>setSizePolicy(<span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding<span class="operator">,</span> <span class="type"><a href="qsizepolicy.html">QSizePolicy</a></span><span class="operator">::</span>Expanding);
<span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span> <span class="operator">*</span>layout <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="qvboxlayout.html">QVBoxLayout</a></span>;
layout<span class="operator">-</span><span class="operator">></span>addWidget(button);
layout<span class="operator">-</span><span class="operator">></span>setContentsMargins(<span class="number">80</span><span class="operator">,</span> <span class="number">80</span><span class="operator">,</span> <span class="number">80</span><span class="operator">,</span> <span class="number">80</span>);
setLayout(layout);
<span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span> <span class="operator">*</span>machine <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstatemachine.html">QStateMachine</a></span>(<span class="keyword">this</span>);
<span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>s1 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>();
s1<span class="operator">-</span><span class="operator">></span>assignProperty(button<span class="operator">,</span> <span class="string">"text"</span><span class="operator">,</span> <span class="string">"Outside"</span>);
<span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>s2 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>();
s2<span class="operator">-</span><span class="operator">></span>assignProperty(button<span class="operator">,</span> <span class="string">"text"</span><span class="operator">,</span> <span class="string">"Inside"</span>);
<span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span> <span class="operator">*</span>enterTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span>(button<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>Enter);
enterTransition<span class="operator">-</span><span class="operator">></span>setTargetState(s2);
s1<span class="operator">-</span><span class="operator">></span>addTransition(enterTransition);
<span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span> <span class="operator">*</span>leaveTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span>(button<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>Leave);
leaveTransition<span class="operator">-</span><span class="operator">></span>setTargetState(s1);
s2<span class="operator">-</span><span class="operator">></span>addTransition(leaveTransition);
<span class="type"><a href="../qtcore/qstate.html">QState</a></span> <span class="operator">*</span>s3 <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qstate.html">QState</a></span>();
s3<span class="operator">-</span><span class="operator">></span>assignProperty(button<span class="operator">,</span> <span class="string">"text"</span><span class="operator">,</span> <span class="string">"Pressing..."</span>);
<span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span> <span class="operator">*</span>pressTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span>(button<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>MouseButtonPress);
pressTransition<span class="operator">-</span><span class="operator">></span>setTargetState(s3);
s2<span class="operator">-</span><span class="operator">></span>addTransition(pressTransition);
<span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span> <span class="operator">*</span>releaseTransition <span class="operator">=</span> <span class="keyword">new</span> <span class="type"><a href="../qtcore/qeventtransition.html">QEventTransition</a></span>(button<span class="operator">,</span> <span class="type"><a href="../qtcore/qevent.html">QEvent</a></span><span class="operator">::</span>MouseButtonRelease);
releaseTransition<span class="operator">-</span><span class="operator">></span>setTargetState(s2);
s3<span class="operator">-</span><span class="operator">></span>addTransition(releaseTransition);
machine<span class="operator">-</span><span class="operator">></span>addState(s1);
machine<span class="operator">-</span><span class="operator">></span>addState(s2);
machine<span class="operator">-</span><span class="operator">></span>addState(s3);
machine<span class="operator">-</span><span class="operator">></span>setInitialState(s1);
machine<span class="operator">-</span><span class="operator">></span>start();
}
};
<span class="type">int</span> main(<span class="type">int</span> argc<span class="operator">,</span> <span class="type">char</span> <span class="operator">*</span><span class="operator">*</span>argv)
{
<span class="type"><a href="qapplication.html">QApplication</a></span> app(argc<span class="operator">,</span> argv);
Window window;
window<span class="operator">.</span>resize(<span class="number">300</span><span class="operator">,</span> <span class="number">300</span>);
window<span class="operator">.</span>show();
<span class="keyword">return</span> app<span class="operator">.</span>exec();
}
</pre>
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<!-- @@@statemachine/eventtransitions/main.cpp -->
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<acronym title="Copyright">©</acronym> 2017 The Qt Company Ltd.
Documentation contributions included herein are the copyrights of
their respective owners.<br> The documentation provided herein is licensed under the terms of the <a href="http://www.gnu.org/licenses/fdl.html">GNU Free Documentation License version 1.3</a> as published by the Free Software Foundation.<br> Qt and respective logos are trademarks of The Qt Company Ltd. in Finland and/or other countries worldwide. All other trademarks are property
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distrib
>
Mageia
>
6
>
armv5tl
>
media
>
core-updates
>
by-pkgid
>
768f7d9f703884aa2562bf0a651086df
>
files
>
4256
